Black fly

[geoffpompey]

Hi all
I have read on a few threads that broad beans sown in winter are less likley to be attacked by black fly..
Is this true & if so does anybody know why??
Cheers

[lynda66]

cos black fly die off in the winter i presume.

[Two_Sheds]

It's because they are sap suckers ... and there is less sap in older, tougher plants. Young fresh green growth is full of sap, and therefore more available to aphids

[geoffpompey]

aaah!!! now that makes sense. Been bugging me for a while & it was a pretty simple reason. (must try harder) )

[Flummery]

However, I have to say that when the new growth starts on the over-wintered broadies in spring - they still get the black fly. Mine did anyway.

[Snadger]

However, I have to say that when the new growth starts on the over-wintered broadies in spring - they still get the black fly. Mine did anyway.

Yep, blackfly always attack the young new shoots at the top......that's why it's recommended to nip these off!